import Id ( Id, idName, setGlobalIdDetails )
import IdInfo ( GlobalIdDetails(VanillaGlobal) )
import HscTypes ( InteractiveContext(..), TyThing(..) )
+import PrelNames ( iINTERACTIVE )
+import CoreTidy ( tidyCoreExpr )
+import StringBuffer ( stringToStringBuffer )
#endif
import HsSyn
-import StringBuffer ( hGetStringBuffer,
- stringToStringBuffer, freeStringBuffer )
+import Id ( idName )
+import IdInfo ( CafInfo(..), CgInfoEnv, CgInfo(..) )
+import StringBuffer ( hGetStringBuffer, freeStringBuffer )
import Parser
import Lex ( PState(..), ParseResult(..) )
import SrcLoc ( mkSrcLoc )
import Rename ( checkOldIface, renameModule, closeIfaceDecls )
import Rules ( emptyRuleBase )
import PrelInfo ( wiredInThingEnv, wiredInThings )
-import PrelNames ( vanillaSyntaxMap, knownKeyNames, iNTERACTIVE )
+import PrelNames ( vanillaSyntaxMap, knownKeyNames )
import MkIface ( completeIface, writeIface, pprIface )
-import Type ( Type )
import TcModule
import InstEnv ( emptyInstEnv )
import Desugar
import SimplCore
import CoreUtils ( coreBindsSize )
import CoreTidy ( tidyCorePgm )
-import CoreSat
-import CoreTidy ( tidyCoreExpr )
+import CorePrep ( corePrepPgm )
+import StgSyn
import CoreToStg ( coreToStg )
import SimplStg ( stg2stg )
import CodeGen ( codeGen )
import Module ( ModuleName, moduleName, mkHomeModule,
moduleUserString )
import CmdLineOpts
-import ErrUtils ( dumpIfSet_dyn, showPass )
+import ErrUtils ( dumpIfSet_dyn, showPass, printError )
import Util ( unJust )
import UniqSupply ( mkSplitUniqSupply )
import Interpreter
import CmStaticInfo ( GhciMode(..) )
import HscStats ( ppSourceStats )
-import HscTypes ( ModDetails, ModIface(..), PersistentCompilerState(..),
- PersistentRenamerState(..), ModuleLocation(..),
- HomeSymbolTable,
- NameSupply(..), PackageRuleBase, HomeIfaceTable,
- typeEnvClasses, typeEnvTyCons, emptyIfaceTable
- )
+import HscTypes
import FiniteMap ( FiniteMap, plusFM, emptyFM, addToFM )
import OccName ( OccName )
import Name ( Name, nameModule, nameOccName, getName, isGlobalName )
-import NameEnv ( emptyNameEnv )
+import NameEnv ( emptyNameEnv, mkNameEnv )
import Module ( Module, lookupModuleEnvByName )
+import Maybes ( orElse )
+
+import IOExts ( newIORef, readIORef, writeIORef, unsafePerformIO )
import Monad ( when )
import Maybe ( isJust )
Nothing -> return (HscFail pcs_ch{-was: pcs_rn-});
Just (pcs_tc, tc_result) -> do {
- ; let env_tc = tc_env tc_result
- insts_tc = tc_insts tc_result
-
-------------------
-- DESUGAR
-------------------
- ; (ds_binds, ds_rules, foreign_stuff)
+ ; (ds_details, foreign_stuff)
<- _scc_ "DeSugar"
deSugar dflags pcs_tc hst this_mod print_unqualified tc_result
-------------------
-- SIMPLIFY
-------------------
- ; (simplified, orphan_rules)
+ ; simpl_details
<- _scc_ "Core2Core"
- core2core dflags pcs_tc hst dont_discard ds_binds ds_rules
+ core2core dflags pcs_tc hst dont_discard ds_details
-------------------
-- TIDY
-------------------
- ; (pcs_simpl, tidy_binds, new_details)
- <- tidyCorePgm dflags this_mod pcs_tc env_tc insts_tc
- simplified orphan_rules
+ ; cg_info_ref <- newIORef Nothing ;
+ ; let cg_info :: CgInfoEnv
+ cg_info = unsafePerformIO $ do {
+ maybe_cg_env <- readIORef cg_info_ref ;
+ case maybe_cg_env of
+ Just env -> return env
+ Nothing -> do { printError "Urk! Looked at CgInfo too early!";
+ return emptyNameEnv } }
+ -- cg_info_ref will be filled in just after restOfCodeGeneration
+ -- Meanwhile, tidyCorePgm is careful not to look at cg_info!
+
+ ; (pcs_simpl, tidy_details)
+ <- tidyCorePgm dflags this_mod pcs_tc cg_info simpl_details
-------------------
- -- BUILD THE NEW ModDetails AND ModIface
+ -- PREPARE FOR CODE GENERATION
-------------------
- ; final_iface <- _scc_ "MkFinalIface"
- mkFinalIface ghci_mode dflags location
- maybe_checked_iface new_iface new_details
+ -- Do saturation and convert to A-normal form
+ ; prepd_details <- corePrepPgm dflags tidy_details
-------------------
-- CONVERT TO STG and COMPLETE CODE GENERATION
-------------------
- -- Do saturation and convert to A-normal form
- ; saturated <- coreSatPgm dflags tidy_binds
+ ; let
+ ModDetails{md_binds=binds, md_types=env_tc} = prepd_details
+
+ local_tycons = typeEnvTyCons env_tc
+ local_classes = typeEnvClasses env_tc
+
+ imported_module_names = map ideclName (hsModuleImports rdr_module)
+ imported_modules = map mod_name_to_Module imported_module_names
+
+ (h_code,c_code,fe_binders) = foreign_stuff
+
+ pit = pcs_PIT pcs_simpl
+
+ mod_name_to_Module :: ModuleName -> Module
+ mod_name_to_Module nm
+ = let str_mi = lookupModuleEnvByName hit nm `orElse`
+ lookupModuleEnvByName pit nm `orElse`
+ pprPanic "mod_name_to_Module: no hst or pst mapping for"
+ (ppr nm)
+ in mi_module str_mi
+
+ ; (maybe_stub_h_filename, maybe_stub_c_filename,
+ maybe_bcos, final_iface )
+ <- if toInterp
+ then do
+ ----------------- Generate byte code ------------------
+ (bcos,itbl_env) <- byteCodeGen dflags binds
+ local_tycons local_classes
+
+ -- Fill in the code-gen info
+ writeIORef cg_info_ref (Just emptyNameEnv)
+
+ ------------------ BUILD THE NEW ModIface ------------
+ final_iface <- _scc_ "MkFinalIface"
+ mkFinalIface ghci_mode dflags location
+ maybe_checked_iface new_iface tidy_details
+
+ return ( Nothing, Nothing,
+ Just (bcos,itbl_env), final_iface )
+
+ else do
+ ----------------- Convert to STG ------------------
+ (stg_binds, cost_centre_info, stg_back_end_info)
+ <- _scc_ "CoreToStg"
+ myCoreToStg dflags this_mod binds
+
+ -- Fill in the code-gen info for the earlier tidyCorePgm
+ writeIORef cg_info_ref (Just stg_back_end_info)
+
+ ------------------ BUILD THE NEW ModIface ------------
+ final_iface <- _scc_ "MkFinalIface"
+ mkFinalIface ghci_mode dflags location
+ maybe_checked_iface new_iface tidy_details
+
+ ------------------ Code generation ------------------
+ abstractC <- _scc_ "CodeGen"
+ codeGen dflags this_mod imported_modules
+ cost_centre_info fe_binders
+ local_tycons stg_binds
+
+ ------------------ Code output -----------------------
+ (maybe_stub_h_name, maybe_stub_c_name)
+ <- codeOutput dflags this_mod local_tycons
+ binds stg_binds
+ c_code h_code abstractC
+
+ return ( maybe_stub_h_name, maybe_stub_c_name,
+ Nothing, final_iface )
+
+ ; let final_details = tidy_details {md_binds = []}
- ; (maybe_stub_h_filename, maybe_stub_c_filename, maybe_bcos)
- <- restOfCodeGeneration dflags toInterp this_mod
- (map ideclName (hsModuleImports rdr_module))
- foreign_stuff env_tc saturated
- hit (pcs_PIT pcs_simpl)
-- and the answer is ...
- ; return (HscRecomp pcs_simpl new_details final_iface
+ ; return (HscRecomp pcs_simpl
+ final_details
+ final_iface
maybe_stub_h_filename maybe_stub_c_filename
maybe_bcos)
}}}}}}}
-mkFinalIface ghci_mode dflags location maybe_old_iface new_iface new_details
+mkFinalIface ghci_mode dflags location
+ maybe_old_iface new_iface new_details
= case completeIface maybe_old_iface new_iface new_details of
+
(new_iface, Nothing) -- no change in the interfacfe
-> do when (dopt Opt_D_dump_hi_diffs dflags)
(printDump (text "INTERFACE UNCHANGED"))
dumpIfSet_dyn dflags Opt_D_dump_hi
"UNCHANGED FINAL INTERFACE" (pprIface new_iface)
return new_iface
+
(new_iface, Just sdoc_diffs)
-> do dumpIfSet_dyn dflags Opt_D_dump_hi_diffs "INTERFACE HAS CHANGED"
sdoc_diffs
dumpIfSet_dyn dflags Opt_D_dump_hi "NEW FINAL INTERFACE"
(pprIface new_iface)
- -- Write the interface file
+
+ -- Write the interface file, if not in interactive mode
when (ghci_mode /= Interactive)
(writeIface (unJust "hscRecomp:hi" (ml_hi_file location))
new_iface)
}}
-restOfCodeGeneration dflags toInterp this_mod imported_module_names
- foreign_stuff env_tc tidy_binds
- hit pit -- these last two for mapping ModNames to Modules
- | toInterp
- = do (bcos,itbl_env)
- <- byteCodeGen dflags tidy_binds local_tycons local_classes
- return (Nothing, Nothing, Just (bcos,itbl_env))
-
- | otherwise
- = do
- -------------------------- Convert to STG -------------------------------
- (stg_binds, cost_centre_info)
- <- _scc_ "CoreToStg"
- myCoreToStg dflags this_mod tidy_binds env_tc
-
- -------------------------- Code generation ------------------------------
- abstractC <- _scc_ "CodeGen"
- codeGen dflags this_mod imported_modules
- cost_centre_info fe_binders
- local_tycons stg_binds
-
- -------------------------- Code output -------------------------------
- (maybe_stub_h_name, maybe_stub_c_name)
- <- codeOutput dflags this_mod local_tycons
- tidy_binds stg_binds
- c_code h_code abstractC
-
- return (maybe_stub_h_name, maybe_stub_c_name, Nothing)
- where
- local_tycons = typeEnvTyCons env_tc
- local_classes = typeEnvClasses env_tc
- imported_modules = map mod_name_to_Module imported_module_names
- (h_code,c_code,fe_binders) = foreign_stuff
-
- mod_name_to_Module :: ModuleName -> Module
- mod_name_to_Module nm
- = let str_mi = case lookupModuleEnvByName hit nm of
- Just mi -> mi
- Nothing -> case lookupModuleEnvByName pit nm of
- Just mi -> mi
- Nothing -> barf nm
- in mi_module str_mi
- barf nm = pprPanic "mod_name_to_Module: no hst or pst mapping for"
- (ppr nm)
-
-
-myCoreToStg dflags this_mod tidy_binds env_tc
+myCoreToStg dflags this_mod tidy_binds
= do
() <- coreBindsSize tidy_binds `seq` return ()
-- TEMP: the above call zaps some space usage allocated by the
-- simplifier, which for reasons I don't understand, persists
-- thoroughout code generation
- --let bcos = byteCodeGen dflags tidy_binds local_tycons local_classes
-
-
- stg_binds <- _scc_ "Core2Stg" coreToStg dflags this_mod tidy_binds
+ stg_binds <- _scc_ "Core2Stg" coreToStg dflags tidy_binds
(stg_binds2, cost_centre_info)
<- _scc_ "Core2Stg" stg2stg dflags this_mod stg_binds
- return (stg_binds2, cost_centre_info)
+ let env_rhs :: CgInfoEnv
+ env_rhs = mkNameEnv [ (idName bndr, CgInfo (stgRhsArity rhs) caf_info)
+ | (bind,_) <- stg_binds2,
+ let caf_info
+ | stgBindHasCafRefs bind = MayHaveCafRefs
+ | otherwise = NoCafRefs,
+ (bndr,rhs) <- stgBindPairs bind ]
+
+ return (stg_binds2, cost_centre_info, env_rhs)
where
- local_tycons = typeEnvTyCons env_tc
- local_classes = typeEnvClasses env_tc
+ stgBindPairs (StgNonRec _ b r) = [(b,r)]
+ stgBindPairs (StgRec _ prs) = prs
\end{code}
projects / ghc-hetmet.git / blobdiff